<gm:page title="My App" authenticate="false">

  <gm:tabs target="my_c" />
 <gm:container id="my_c">
   
   <gm:section id="my_c_s1" title="public">
     Hello World
   </gm:section>

   <gm:section id="my_c_s2" title="private">
    You will not be able to add to this task list unless you sign in.
 <a href="secretpage.html">sign-in</a>
   
<gm:list id="myList" data="${app}/foo" template="myTemplate"/>
     
   </gm:section>
   
</gm:container>

</gm:page>